OPB732 Datasheet, PDF (1/3 Pages) OPTEK Technologies – Long Distance Reflective Switch

Long Distance Reflective Switch
OPB732, OPB732WZ
Features:
PC board mounting (OPB732)
24” (610 mm) 26 AWG wired with mounting tabs (OPB732WZ)
Non-contact infrared switch
Up to 1” or more reflective distance depending on circuitry
OPB732
Product Photo Here
OPB732WZ
Description:
OPB732 uses an Infrared LED and Phototransistor in a reflective switch configuration. The assembly is offered
with either PCBoard through hole pins (OPB732) or 24” (610 mm), 26 AWG wires (OPB732WZ), and uses an
opaque housing to reduce the sensor’s ambient light sensitivity. The emitter and sensor are protected by a clear
window, providing a device that can operate in a dusty environment. The phototransistor can be configured as a
Common Collector or Common Emitter device.
While an object is in the reflective path of the device, light from the LED will be reflected back to the housing
irradiating the surface (base) of the phototransistor. When Infrared light strikes the phototransistor, the transistor
becomes forward biased and is considered to be in the “ON” state, providing an I_C(ON) current proportional to the
light striking the phototransistor. With the Infrared light from the LED not being reflected to the phototransistor, the
phototransistor turns “OFF,” minimizing the I_C(ON) current.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Applications:
Non-contact reflective object sensor
Assembly line automation
Machine automation
Equipment security
Door sensor
Machine safety
End of travel sensor
Door sensor
Ordering Information
Part
Number
LED Peak
Wavelength
Lead Length / Spacing
OPB732
OPB732WZ
850 nm
0.150”/ see diagram
24" / 26 AWG Wire
3
2
4
1
Pin #
Green-1
White-2
Red-3
Black-4
LED
Emitter
Collector
Anode
Cathode
OPB732
OPB732WZ
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: [phone] or [phone]
FAX: [phone] [e-mail] www.optekinc.com
Issue A .2 02/06
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